gstreamer/docs/plugins/inspect/plugin-mpg123.xml

<plugin>
  <name>mpg123</name>
  <description>mp3 decoding based on the mpg123 library</description>
  <filename>../../ext/mpg123/.libs/libgstmpg123.so</filename>
  <basename>libgstmpg123.so</basename>
  <version>1.7.1</version>
  <license>LGPL</license>
  <source>gst-plugins-bad</source>
  <package>GStreamer Bad Plug-ins source release</package>
  <origin>Unknown package origin</origin>
  <elements>
    <element>
      <name>mpg123audiodec</name>
      <longname>mpg123 mp3 decoder</longname>
      <class>Codec/Decoder/Audio</class>
      <description>Decodes mp3 streams using the mpg123 library</description>
      <author>Carlos Rafael Giani &lt;dv@pseudoterminal.org&gt;</author>
      <pads>
        <caps>
          <name>sink</name>
          <direction>sink</direction>
          <presence>always</presence>
          <details>audio/mpeg, mpegversion=(int)1, layer=(int)[ 1, 3 ], rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, channels=(int)[ 1, 2 ], parsed=(boolean)true</details>
        </caps>
        <caps>
          <name>src</name>
          <direction>source</direction>
          <presence>always</presence>
          <details>audio/x-raw, format=(string){ S16LE, U16LE, S32LE, U32LE, S24LE, U24LE, F32LE }, rate=(int){ 8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100, 48000 }, channels=(int)[ 1, 2 ], layout=(string)interleaved</details>
        </caps>
      </pads>
    </element>
  </elements>
</plugin>